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Start Over Author "Chvalaev, O" Topic astrophysics
3 results on '"Chvalaev, O"'

1. Data acquisition system for the TUNKA-133 array

Author

Budnev, N. M., Chvalaev, O. B., Gress, O. A., Kalmykov, N. N., Kozhin, V. A., Korosteleva, E. E., Kuzmichev, L. A., Lubsandorzhiev, B. K., Mirgazov, R. R., Navarra, G., Panasyuk, M. I., Pankov, L. V., Prosin, V. V., Ptuskin, V. S., Semeney, Y. A., Skurikhin, A. V., Shaibonov, B. A., Spiering, Ch., Wischnewski, R., Yashin, I. V., Zablotsky, A. Z., and Zagorodnikov, A. V.

Subjects
Astrophysics
Abstract

The new EAS Cherenkov array TUNKA-133, with about 1 km**2 sensitive area, is being installed in the Tunka Valley. The investigated energy range is 10**15-10**18 eV. It will consist of 133 optical detectors based on EMI9350 PMTs. Optical detectors are grouped into 19 clusters with 7 detectors each. The detectors are connected to the cluster box with RG-58 cables. Every PMT signal is digitized in the cluster box with 200 MHz FADC. The cluster boxes are connected to the data acquisition center with a 1 Gb/s optical link. A detailed description of the data acquisition system (DAQ) is presented., Comment: 5 pages, 4 figures, Proceedings of the 10th ICATPP Conference,Como Italy, 8-12 October 2007

Published
2008
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2. Tunka-133 EAS Cherenkov Array: Status of 2007

Author

Budnev, N. M., Chvalaev, O. V., Gress, O. A., Kalmykov, N. N., Kozhin, V. A., Korosteleva, E. E., Kuzmichev, L. A., Lubsandorzhiev, B. K., Mirgazov, R. R., Navarra, G., Panasyuk, M. I., Pankov, L. V., Prosin, V. V., Ptuskin, V. S., Semeney, Y. A., Skurikhin, A. V., Shaibonov, B. A., Spiering, Ch., Wieschnewski, R., Yashin, I. V., Zablotsky, A. V., and Zagorodnikov, A. V.

Subjects
Astrophysics
Abstract

The new EAS Cherenkov array Tunka-133, with about 1 km**2 sensitive area, is being installed in the Tunka Valley since the end of 2005. This array will permit a detailed study of the cosmic ray energy spectrum and the mass composition in the energy range of 10**15-10**18 eV with a unique method. The array will consist of 19 clusters, each composed of 7 optical detectors. The first cluster started operation in October 2006. We describe the data acquisition system and present preliminary results from data taken with the first cluster., Comment: 4 pages, 4 figures, Proceedings of 30th ICRC, Merinda, Mexico, July 2007

Published
2008

3. The TAIGA timing array HiSCORE - first results.

Author

Tluczykont, M., Budnev, N., Astapov, I., Barbashina, N., Bogdanov, A., Boreyko, V., Brückner, M., Chiavassa, A., Chvalaev, O., Gress, O., Gress, T., Grishin, O., Dyachok, A., Epimakhov, S., Fedorov, O., Gafarov, A., Gorbunov, N., Grebenyuk, V., Grinuk, A., and Horns, D.

Subjects
GAMMA rays, COSMIC ray showers, CHERENKOV radiation, ASTROPHYSICS, PARTICLE accelerators
Abstract

Observations of gamma rays up to several 100 TeV are particularly important to spectrally resolve the cutoff regime of the long-sought Pevatrons, the cosmic-ray PeV accelerators. One component of the TAIGA hybrid detector is the TAIGA-HiSCORE timing array, which currently consists of 28 wide angle (0.6 sr) air Cherenkov timing stations distributed on an area of 0.25 km2. The HiSCORE concept is based on (nonimaging) air shower front sampling with Cherenkov light. First results are presented. [ABSTRACT FROM AUTHOR]

Published
2017
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